REGULAR LACTATION IN NON-ESTRUS AND ... PREGNANT GOAT FOR YEARS -- A ... Short Communication Shibabrata Pattanayak

Explor. Anim.
Med. Res., Animal
Vol.3, Issue - 2, 2013, p. 190-192
and Medical Research,
2013 (Online)
ISSN 2319-247X
Short Communication
Shibabrata Pattanayak
ABSTRACT: A domestic red colored Bengal she-goat is reported to let down milk regularly from the
age of four months for years in absence of any kind of medication. The goat never experienced estrum
or pregnancy. The quantity of secreted milk is having a definite pattern. It secretes milk @ 1500ml/
day for about six months. Then the quantity of milk decreased rapidly to 300 ml and that quantity
lasted for about next six months. Again the quantity of milk increased gradually up to the level of 1500
ml in next six months and stay in this level for next six months and the pattern continued. The typical
case is documented for the first time with searching of possible reasons.
Key words: Bengal goat, Non-pubertal, Lactation.
Lactation is a physiological phenomenon
among mammals. The changes in the level of
hormones during pregnancy and after
parturition control the initiation and
maintenance of lactation in the nursing mothers.
Report of lactation in non-pubertal kid is very
rare (Yuhara and Wada 1966, Pattanayak 2008)
and regular lactation in non pubertal aged she goat is reported for the first time here.
A farmer of Village-Harharia, BlockRaninagar 1, District- Murshidabad, West
Bengal, India was rearing one red colored she
-goat of Bengal variety called as Tuci. It was
letting down milk during last four years.
According to the report of the owner, it was
noticed to let down milk for the first time during
the age of four months. Since then it was giving
milk continuously.
Letting down of milk of the goat was having
a definite pattern. The goat secreted milk
1500ml/day for about six months. Then the
quantity of milk decreased rapidly to 300 ml
and that quantity lasted for about next six
months. Again the quantity of milk increased
gradually up to the level of 1500 ml in next six
months and stay in this level for next six months
and the pattern continued. The goat never
showed any sign of estrum and so never
experienced pregnancy. The goat was accepted
in the house of its owner as a pet member of
the family. So it was accustomed to eat common
human food like bread, boiled rice, fried
Assistant Director,ARD(Microbiology) Institute of Animal Health &Veterinary Biologicals(R&T),
37 Belgachia Road,Kolkata 700037, West Bengal, India.
First report of regular lactation in non-pubertal goat...
Fig. 1: Tuci, the non-pubertal lactating goat.
Fig. 2: Tuci with bondage.
Fig.3: Tuci lactating.
Fig.4: Showing external genitalia.
vegetable preparation, whey and even tea along
with its normal diet like forages and grains like
External genitalia of lactating heifer goat
were found almost normal in size. The size of
the vaginal orifice was also normal. Size and
body weight of the heifer goat appeared very
good in comparison with the common Bengal
goats. The goat was found to have a vice to
attack unknown persons. This goat was giving
milk regularly to the owner.
In goats, estrogen alone can induce complete
udder growth and lactation, but some other
endothelial secretions may play a role (Roberts
et al. 1982). Once the anatomical development
of the ducts and alveoli becomes complete, the
continuous action of estrogen and progesterone
is not required for lactation itself (Harrison
et al. 1998).
For many years dairy scientists have induced
lactation in non pregnant or virgin goats by
means of direct injection of estrogen and
progesterone. A new advance allows to improve
the effectiveness of this treatment in dairy goats
Exploratory Animal and Medical Research, Vol.3, Issue 2, December, 2013
by combining reserpine, a prolactin releasing
agent (Salama et al. 2007). There are certain
recommended drugs in lactation and pregnancy
in women, such as Reglan, Sulpiride and
Domperidone etc. which can stimulate lactation.
They block dopamine and raise prolactin level.
Increased prolactin, in turn, results in lactation.
Intake of certain herbs can induce lactation,
even without pregnancy. Fennel, fenugreek,
anise seed, cumin seed, blessed thistle, goat’s
rue and hops are some of the common examples
(Kalpana Kumari 2013).
In the present case, no medicine, artificial
hormone or herb was used for initiation of
lactation and no such medicine is in use for
maintenance of lactation. The animal not
experienced estrum or pregnancy, though letting
down milk continuously with a definite pattern.
A detail study of genetic, hormonal and other
biochemical parameters of blood and milk may
help to identify the actual reasons behind this.
Harrison TR, Anthony S, Fauci Dennis L,
Kasper Dan, L Longo, Eugene Braunwald,
Stephen L. Hauser, J Larry Jameson, Joseph
Loscalzo.(1998). Harrison’s Principles of Internal
Medicine (14 th edn. ). Mc.Graw-Hill Health
Professions Division. p.1972-1990, 2116-2118.
Kalpana Kumari.(2013). Lactation without
pregnancy. lactation-without-pregnancy.html (accessed on
Pattanayak S.(2008). Lactation in kid and
calf – case reports. Intas Polivet. 9 (1): 28-30.
Roberts SJ.(1982).Veterinary Obstetrics and
Genetal Diseases 2nd edn. CBS Publishers and distributors. New Delhi. p.99-102.
Salama AAK, Caja G, Albanell E, Carne S,
Casals R and Such X.(2007). Mammogenesis
and induced lactation with or without reserpine in
nulliparous dairy goats . J. Dairy Sc. 90 (8): 37513757.
Yuhara M and Wada H.(1966). Mammary
secretion of a newborn kid of dairy goat. Displayed
in p.55-60. (accessed on
*Cite the article as: Pattanayak S.(2013). Regular lactation in non-estrus and non-pregnant goat
for years -- a case report. Explor. Anim. Med .Res. 3(2): 190-192.